Corn-planter-frame construction.



E. W. PAULSON.

CORN'PLANTER FRAME CONSTRUCTION.

APPLICATION FILED JULY 6.1911 7 Patented May 21, 1918.

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ERNEST W. .PAULSON, .OF OTOE, IOWA.

CORN-PLANTER-FRAME CONSTRUCTION.

Specification of Letters Patent.

Patented May 21, 1918.

Original application filed september 29, 1916, Serial No.,122,924. Divided and this application filed July 6, 1917. Serial No. 179,031.

I To allwhom it may concern:

Be it known that I, ERNEST NV. :Paonson, a citizen of-the United States, and a resident ofOtoe, in thccounty of Noodbury and State of zIowa, have inventedcert-ain new and useful Improvements in Corn-Planter- Frame 'Constructiomof which the following is a. specification.

The present invention .relates to corn planters.

This application is divided from and coverst-he specific frame construction disclosed inmy concurrent application Ser. No. 122,924 filed Sept. 29,1916.

In the structure presented inmy U. S. Patent #1,1.74l,6.0s ..March7,1916 is provided means for supporting vthe seed planting mechanisms consisting of upper and lower pairs of rods having their forward ends pivoted to: the mainframe and their rear ends pivoted to the opposite sides ofthe chutes oftheplanting mechanism. .In order to pivotailly,support the planting mechanisms and yet hold them firmly against lateral movement andalso toafi ordmeans for raising and lowering said mechanisms, a crank shaft is providedhaving its wristsjournaled in the seed planting mechanisms and its eX- tremities slidably supported on the main frame. This construction has been found to suifer from defects, chiefly as follows:

The crank shaft and its associated parts add considerable complication and cost to the mechanism and inasmuch as they are journaled in the upper part of said mechanism they do not positively prevent lateral movement of the lower part, which latter part should at all times be immovable laterally.

The present invention therefore, has for its primary object an improvement 1n the general construction disclosed in my prior patent.

Another object of the invention is the production in a corn planter of an improved, simplified, inexpensive and dependable means for pivotally supporting the seed planting mechanisms in such a. manner as to positively prevent their lateral movement and yet permit them to move freely in vertical planes to accommodate themselves to irregularity of the earths surface.

Furthermore, the invention contemplates in a corn-planter improved means for raising and lowering the planting mechanism.

With these andother objects in view, the invention, consisting in the combination, construction and novel arrangement of parts will be fully understood from the following description, reference being had to the accompanying drawings which form a part of this application and in which like characters of reference indicate corresponding parts throughout the several views,.of which,

Figure 1 is a fragmentary plan of a multiple-row corn-planter constructed in accordance with the invention; and

Fig. 2 is a side elevation of the same.

Referring, now, to the illustrations, 3, represents the main-frame carried by travelwheels, 4. The planting mechanisms each include an upright seed chute, 5, a furrow opening runner, 6, at the lower end thereof, and a seed hopper, 7, at the upper end there-- of, operable to deliver seeds to the chute. The seed dropping mechanisms are pivotally supported to move freely vertically and are held rigidly against lateral movement by means of upper and lower frames comprising rods, 8, bent substantially in a U- shape and having their webs journaled in bearings, 9, .mounted on the front side of the chute. The ends of the upper rod are pivoted to an upright 10, on the main-frame, while the ends of the lower rod are pivoted on a transverse shaft, 11, journaled in a bracket bearing 12, depending from the main-frame.

The said shaft it is understood, is one of the rock-shafts disclosed in my parent application and affords a very convenient pivot for the lower rod, 8.

Means for simultaneously raising and lowering the seed planting mechanisms consists preferably, of a transverse rock-shaft 13, journaled in bearings on the rear of the main frame and provided with crank-arms, 15, connected to flexible links, 16, which pass over direction-pulleys, 17 mounted on the main-frame; and connected with arms 18, on the lower portions of the seed planting mechanisms.

The shaft is actuated by means of a suitable lever, 19, fulcrumed on a quadrant,

20, mounted on the main-frame and con nected by a link, 21, with a crank arm, 22, on the rock-shaft.

It is now evident that rearward movement of the lever will turn the rock-shaft to simultaneously raise the seed dropping ing an upright chute and a furrow-opening member at the bottom thereof, the combination of a pair of superposed substantially U-shaped rods having their webs pivoted to the chute and their ends pivoted to the main-frame.

2. In a corn-planter including a mainframe and a seed planting mechanism including a seed chute and a furrow-opening member at the bottom thereof, the combination of a pair of superposed substantially U-shaped rods, and upper and lower bearings on the front of the chute, the webs of the rods being journaled within the bearings and the ends of the rods being pivoted to the main-frame.

3. In a multiple-row corn-planter, the combination with a main-frame and a plurality of seed planting mechanisms arranged transversely thereof and each including a seed chute and a furrow-opening member at the bottom thereof, a pair of substantially U-shaped rods for each seed planting mechanism, upper and lower hearings on the front sides of the chutes, the webs of the rods being journaled in said bearings and the ends of the rods being pivoted to the main-frame, and means for simultaneously raising and lowering the seed planting mechanisms including a transverse rockshaft at the rear ofthe main-frame, crank arms carried thereby and links between the crank-arms and the seed mechanisms operable to raise and lower the planting mechanisms when the rock shaft is actuated.

l. In a multiple row corn-planter the combination with a main-frame and a plurality of seed planting mechanisms each including a chute and a furrow-opening member at the bottom thereof, of a pair of substantially U-shaped rods for the support of the planting mechanisms, upper and lower bearings on the front sides of the chutes the webs of the rods being journaled in the bearings and the ends of the rods being pivoted to the mainframe and means for simultaneously raising and lower ing the planting mechanisms including a transverse rock-shaft mounted on the mainframe, crank arms carried thereby, flexible links connecting the crank-arms with the lower portions of the chutes, and direction pulleys on the main frame over which the flexible links pass.

In testimony whereof, I have hereunto set my hand this 30th day of June, 1917.

ERNEST W. PAULSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

